VulnerabilityModified

CVE-2026-50629

This allows an attacker to inject arbitrary content, including fake log entries, into the server's log files.

MEDIUM 5.3EPSS 0.42%

Does this matter?

Lower severity and a low EPSS score (0.42%). Track it; it rarely justifies an emergency change on its own.

Description

The 'clientId' parameter from incoming HTTP requests is directly concatenated into OAuth2 server log warning messages without sanitizing control characters. This allows an attacker to inject arbitrary content, including fake log entries, into the server's log files. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fixes this issue.

CVSS 3.1: 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS: 0.42% probability · 36th percentile
CISA KEV: Not listed
Weakness: CWE-93
Affected: apache/cxf
Source: security@apache.org

References

https://lists.apache.org/thread/xw95po30p8th58ms1no6b0f2375cql00Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/06/11/6Mailing List, Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.